:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #dbe2ea;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: 30px;
}

.subtitle {
  margin: 0 0 20px;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: end;
  margin-bottom: 20px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control label {
  font-size: 14px;
  color: var(--muted);
}

.control select,
.control button {
  height: 40px;
  min-width: 140px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  font-size: 15px;
}

.control button {
  cursor: pointer;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

.chart {
  width: 100%;
  height: 640px;
}

.status {
  color: var(--muted);
  font-size: 14px;
}

.info-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.release-notes {
  margin: 12px 0 0;
  padding-left: 20px;
}

.release-notes li {
  margin-bottom: 8px;
  line-height: 1.5;
}

.release-entry {
  border-top: 1px solid var(--border);
  padding: 10px 0;
}

.release-entry:first-of-type {
  border-top: 0;
}

.release-entry summary {
  cursor: pointer;
  font-weight: 600;
  padding: 4px 0;
}

.release-entry-content {
  margin-top: 10px;
}

.release-entry-content p {
  margin: 10px 0;
}